Plot Outline: Walter Sparrow becomes obsessed with a novel that he believes was written about him. As his obsession increases, more and more similarities seem to arise.Plot: On his birthday, Walter Sparrow, an amiable dog-catcher, takes a call that leaves him dog bit and late to pick up his wife. She's browsed in a bookstore, finding a blood-red-covered novel, a murder mystery with numerology that loops constantly around the number 23. The story captivates Walter: he dreams it, he notices aspects of his life that can be rendered by “23,” he searches for the author, he stays in the hotel (in room 23) where events in the novel took place, and he begins to believe it was no novel. His wife and son try to help him, sometimes in sympathy, sometimes to protect him. Slowly, with danger to himself and to his family, he closes in on the truth.

Crazy Credits: We know about 1 Crazy Credits. One of them reads:Douglas would like to thank Joe Cronin for his help in making this film.

Goofs: We know about 9 goofs. Here comes one of them:Factual errors: In the film, Walter Sparrow claims that the serial killer Ted Bundy died on January 23. Ted Bundy was actually executed on January 24, 1989.

Trivia: There are 19 entries in the trivia list – like these:

Elisabeth Shue was originally cast in the female lead, but had to decline because she was pregnant.

Other instances of the number 23 connected (sometimes very tenuously) with the movie: – The last time Jim Carrey and Joel Schumacher worked together was in “Batman Forever.” In that film, Carrey's character (the Riddler) also showed an obsession for numbers, which he used to represent letters of the alphabet in his riddles. The numbers were 1, 8, and 5. Batman figured out that 1 and 8 were meant to be 18. 18 + 5 = 23. The number 23 is a W, and in “Batman Forever” there is a scene of Carrey underneath a W (the gate outside Wayne Manor). – The address of the bookstore is 599. 5+9+9=23. – Walter's room at the asylum was 318. 31-8=23. – The number of letters in “Animal Control Department” – The apartment number across from the suicide blonde's apartment (959) – The dog in the movie is named NED. N is the 14th letter of the alphabet; E is the fifth; and D is the fourth. 14 + 5 + 4 = 23. – The numbers on Walter's car add up to 23 (906 8TC, 9+0+6+8=23, 20(T)+3(C)=23) – The numbers on Issac's car is 023 5HJ, H is the eight letter in the alphabet and J is the tenth, 5 + 8(H) + 10(J) = 23 – The store front numbers that Fingerling is standing in front of while watching Fabrizia & Phoenix add to 23 (12, and 110). – The film was released in the US on February 23, 2007. – The number of Walter Sparrow's footlocker 87305 = 23 (8+7+3+5) – The PO Box that Carrey and his family mail the boxes to is “P.O.Box 977″. 9+7+7 =23 – His birthday is February the 3rd, 2/3, 23.